All C Brands
- C-More Systems
- C&H Precision Weapons
- CAA Gear Up
- Cadex Defense
- Caldwell
- Canik
- Carlson's
- CCI
- Centurion Arms
- Century Arms
- CGS Group
- Champion Trap & Target
- Charles Daly
- Chiappa Firearms
- Chip McCormick
- Christensen Arms
- Cimarron
- Citadel
- Cloud Defensive
- CMC Triggers
- CMMG
- Cobalt Kinetics
- Cobra Firearms
- Cold Steel
- Colt
- Comp-Tac
- CorBon
- Crosman
- CrossBreed
- Cyclops
- CZ USA